Add Commas To Numbers
From GreaseSpot
Numbers look more readable with commas. The following function will add them to every integer in a string.
function commafy(num) {
var str = (num+"").split("."),
dec=str[1]||"",
num=str[0].replace(/(\d)(?=(\d{3})+\b)/g,"$1,");
return (dec) ? num+'.'+dec : num;
}
Example usage:
commafy("123456789.12345");
//gives: "123,456,789.12345"
